Locking latch



(Model.)

J. LOCH.

LOOKING LATCH.

No. 266,170 Patented 00u17, 'sz.

UNTTen STaTes PATENT Trice.

JOSEPH LOOH, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF AND GEORGE BAYER, OF SAME PLACE.

LOCKING-LATCH.

SPECIFICATION forming part of Letters Patent No. 266,170, dated October 17, 1882.

' Application tied February 1o, ieee. (Moen.)

To all whom' it may concern Beit known that I, JOSEPH LOCU, a citizen ot` the United States, residing at New York, in the county and State ot New York, have invented new and uset'ulImprovementsin Locks, ot' which thefollowing is a specification.

This invention consists in the combination ot' a latch, a bolt for locking said latch either from the inside or from theoutsideof the door, 1o two sets ot' tumblers, one on each side of the bolt, and a key which can be inserted into the lock from the inside and from the outside, and which serves to adjust the two sets ot' tumblers and to actuate a bit t'or throwing the bolt.

This invention is illustrated in the accompanying drawings, in which Figure 1 represents a face view ot my lock when the top ot' the case is taken oft'. Fig. 2 is a horizontal section in the planear a", Fig. 3. Fig. 3 is a zo longitudinal vertical section in the plane y y,

Fig. 1. Fig. 4 is a. face view ot' the key.

Similar letters indicate corresponding parts. ln the drawings, the letter A designates the ease ot' my lock, which is by preference made with an oval cross-section and in two halves, the upper halt' being secured in position by one or more screws. The i'ront portion ot' the case is occupied by the latch B, which is operated by the spindle O and nut D, the uf'ings 3o ot' which act on the tail E ot' the latch. The

rear portion ot' the caseA is occupied by the bolt F and the devices for lockingand unlocking the same. Said bolt rests upon shoulders n, formed on the side ot' the case, as shown in dotted lines in Figs. 1 and 2, and it occupies a central position, leaving` room above for a set ot' tumblers, b, and below for another set ot' tumblers, b. All these tumblers swing on a common pin, c, and each ot' them is supplied 4o withaspring,d. Thel'reeends ot'thesesprings bear some against a pin, e, and others against a pin, e', Fig. l. From the bolt project two stutnps,ff, one from each side, which prevent the bolt from being moved until the tumw blers have been adjusted in the proper position, which is effected by the key K. This key can be inserted from either side into the case, and it is so formed that however it may be introduced it will serve to adjust all the tumblers in the proper position. The key 5o passes through slotted disks g g', which turn loosely in cavities formed for their reception in the case, and which are sustained and connected by a hub, G, from which projects the bit It, and which is slotted throughout its entire length, so as to form a guide for the key, said key being provided with shonlderst'z', Fig. 4, which prevent it from being pushed in any farther than required. Then the key has been pushed in through one of the slotted 6o disks g or g' until it is arrested by its shoulders ifi, said disks, together with the slotted hub G, form a perfectly secure guide for the key, and when said key is turned it acts tirst upon its tumblers, so as to adjust them in the proper position, and then the bit It ot' the hub Gr acts on the bolt F and throws the same forward to the position shown in dotted lines in Fig. 2, or back to the position shown in t'ull lines in the varioustigures of thedrawings. When the bolt 7o occupies this last-named position the latch can be thrown back or opened by turning the spindle O; but it' the bolt F is thrown forward thel latch is locked. The key Kis iiatand provided on its opposite edges with recesses jj, the recessesin one edge heilig precisely the same as those in the opposite edge, so that the key can be inserted into the lock without observingI which edge is up.

B v these means a lof'k is obtained which 8o combines an ordinary lock and a latch, and which, on account ot' the form of its ease and ot'its key-holes, can be used on any door, right or left, without requiring any change, since the case can bc turned and inserted equally well into a door which opens te the right as into one which opens tothe lett, and the key can be inserted equally well whatever the position of the lock may be. Furthermore, by the two sets ot tumblers being situated on the 9o opposite sides ot' the bolt the operation ot'picking the lock is rendered extremely difficult, itl not impossible.

I am aware that rotary hubs provided with a kev slot or opening have been made before, g5 and no not claim such as n'iyinvention.

That I claim as new, and desire to secure by Letters Patent, is-

1. In a latch and lock, the combination, with the casing and the sliding latch arranged in the front end of the casing and operated by the knob-spindle, of a sliding lock-holt, F, arranged in rear of the latch, but in line therewith, two sets of tumblers, b b', arranged rcspeetively ou opposite sides ot' the lock-bolt, a rotary hub, and a detachable key recessed in its opposite edges and adapted to rotate the said huh from either side of the door for sliding the locking-bolt against the rear end of the sliding latch, substantially as and for the purpose described.

2. The combination of' the bolt F, two sets of tuinhlers7 I) b7 one 011 each side of the bolt, the 15 rotary slotted hul) G, the bit h, projecting from said huh, and the slotted disks g g', placed in cavities ot' the lock-case and secured to the ends ofthe slotted huh, all constructed to operate substantially as and for the purpose set zo forth.

ln testimony whercot'I have hereunto set my hand and seal in the presence ot' two subscribing Witnesses.

JOSEPH LOClI. lL. S] itnessesz W. HAUFF, E. F. KAsrENHUnnn. 

